Patkick j



(No Model.)

P. J. GAHILL. VALVE.

No. 580,208; Patented Apr. 6., 1897,

,c me wanna FEIERS cc. Mraumo mumcm o UNITED STATES PATENT OFFICE.

PATRICK J. CAHILL, OF UTICA, NEl/V YORK, ASSIGNOR TO CLARENCE CROUSE, OF SAME PLACE.

VALVE.

SPECIFICATION forming part of Letters Patent No. 580,208, dated April 6, 1897.

Application filed February 3, 1896. Serial No. 577,850. (No model.)

To aZZ whom it may concern:

Be it known that I, PATRICK J. CAHILL, of the city of Utica, in the county of Oneida and State of New York, have invented a new and useful Improvement in Valves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The invention relates to a valve which is adapted to be opened against water or liquid pressure and to be closed automatically with the pressure by means of a float.

It further relates to the combination of a valve of this construction and operation with an operating-lever which is adapted to actuate an escape-valve and to simultaneously open against the pressure of the first-named valve, but which is so connected therewith that its reverse movement, permitting the closing of the escape-valve, does not operate to close the said first-named valve.

The invention is represented in the drawings as applied to a service-box for waterclosets. I would not be understood, however, as limiting the invention to such use, as it may be used in connection with any other box or tank for holding water or any other liquid.

In the drawings, Figure l is a view of a service-box and inlet-valve in vertical section and of the escape-valve in elevation, both valves being shown as closed. Fig. 2 is a view of the same parts, representing in full lines both valves as open and representing in dotted lines the operating-lever as disconnected from the supply-valve and the exhaust-valve as closed. Fig. 3 is a detail view in plan representing the connection between the lever and the supply-valve. Fig. 4: is a view in plan of a perforated diaphragm in the supply-valve, to which reference will be hereinafter made.

A represents the service-box; B, the supply-valve; C, the exhaust-valve; E, a lever pivoted at 6, connected at c with the exhaustvalve and at c with the supply-valve. The supply-valve has a valve-chamber l), with which the supply-pipe b or pipe through which water is fed under pressure connects or enters. This chamber is in the lower part of the casing N, which has the exterior screwthread 6 which screws into the threaded section b of a coupling b the said coupling having a threaded elongation b, which extends through the bottom of the service-box and receives the nut 17 Between the lower edge of the valve-casing b and the coupling is the perforated diaphragm F, the holes f in which may be of any desired size and the object of which is to modify the head or force of the water entering the valve-chamber. The valvecasing has also a diaphragm 17 in which there is a central hole b and the under surface b of this diaphragm acts as a valve-seat, the valve B in the valve-chamber closing against said seat. The opening in said diaphragm connects with the chamber 1), from which the escape-passage Z7 opening into the tank, extends. This escape-passage is formed in a pipe extending from the valve-casing downward, so that its outlet is brought close to the bottom of the tank, and this provides for the flow of the water into the tank with little or no noise, especially as it is preferably so located as to be always submerged, the level of the opening to the escape or exhaust pipe being above the level of the outlet and the tank, consequently always holds the water above the level of said outlet. The valve B is at the end of a rod Z2 which extends upward and has attached to it at any desired height a float G, which preferably is adjustable upon the valve-rod. The valve-rod also forms a connection at c with the lever E. This connection preferably is formed by providing the lever with the slot 6 into which the upper end Z1 of the valve-rod may extend, and the rod bears an adjustable stop or nut b upon which the lever may be moved.

The upper part of the valve-rod is threaded to permit the vertical adjustment of the nut or stop Z1 thereon, and also the vertical adjustment of the float G, the adjustment of the float being obtained by means of the adjusting-nuts g g, one above the float and one below, and both screwing on the threaded section of the rod.

I have represented a peculiar form of floatnamely, an inverted cup open at its lower end g otherwise tight, and adapted to contain air. It preferably is made of metal. I do not confine myself to this type of float,

but may use a float of any other form. The exhaust-valve is of the conventional form, having a casing c, which extends above the water-level of the tank, is connected with the lever E, and uncovers and covers the escapepassages c.

The valve B may be of rubber, leather, or any of its compounds, or of any other desired material. It'is preferably bell-shaped and attached to the lower end of the valve-stem by a nut..

The operation of the mechanism is as follows: The normal position of the parts is that represented in Fig. 1, both valves being closed, the tank being filled with water and the valve 13 being held closed by the combined action of the water-pressure thereon and the float G. The front end of the lever E being moved downward by its operative chain or in any other way, the tank-outlet is opened, permitting the water to flow therefrom, and the supply-valve is also opened against the water-pressure. The valve B being pushed downward in the valve-chamber against said pressure and by the direct impact of the lever with the valve-stem, the water flowing from the tank ceases to support the float G. The lever being released moves the valve-stem to the position represented by the dotted lines in Fig. 2, permitting the outlet-valve to close. The supply-valve, however, still remains open, as the weight of the float is suflicient to hold the valve open or against the tendency of the inflowing water to close it, and this condition continues until the water in the tank has risen to a level sufficiently high to come in contact with the float, and thereby relieve the valve from its pressure thereon and permit the incoming water to finally lift the valve and close it and hold it closed. This action is gradual, so that the valve is noiseless in its closing, and as the water-pressure is always against the valve, when closed, the valve cannot leak, and these are the advantages derived from the construction-namely, an easy-closing noiseless valve,

Having thus fully described my invention,

I claim and desire to secure by Letters Patent of the United States- In a tank or service-box, a supply-valve having a valve-chamber formed in the casing W, a valve contained in said chamber opening against the pressure therein and closing with it, and a perforated diaphragm between the lower edge of said casing and the coupling connecting the valve with the fluid-supply pipe, as and for the purposes described.

PATRICK J. CAHILL.

In presence of WM. H. OAHILL, JOHN J. CAHILL. 

